CN109150433A - DMRS port scheduling and received setting method, base station, terminal and readable medium - Google Patents
DMRS port scheduling and received setting method, base station, terminal and readable medium Download PDFInfo
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- CN109150433A CN109150433A CN201710455700.3A CN201710455700A CN109150433A CN 109150433 A CN109150433 A CN 109150433A CN 201710455700 A CN201710455700 A CN 201710455700A CN 109150433 A CN109150433 A CN 109150433A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
A kind of scheduling of DMRS port and received setting method, base station, terminal and readable medium.The setting method of the DMRS port scheduling includes: in the presence of PT-RS, and for the same UE, two DMRS ports of TD-OCC are not dispatched in setting simultaneously.Using above scheme, the success rate that DMRS port demodulation is multiplexed using TD-OCC mode can be improved.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of scheduling of DMRS port and received setting method, base station, terminals
And readable medium.
Background technique
In new wireless access technology (New Radio Access Technology, NR) system, demodulated reference signal
(De-Modulation Reference Signal, DMRS) is maximum to support 12 orthogonal ports, supports time domain orthogonal overlay code
(Time Domain-Orthogonal Cover Code, TD-OCC) multiplexing, i.e., two ports are two on the same subcarrier
Use different orthogonal covering codes on adjacent symbol, such as the corresponding code word in port 0 is { 1,1 }, the corresponding code word in port 1 be 1 ,-
1 }, in this way when two ports are sent simultaneously, due to believing in the same subcarrier adjacent two symbols on any one port
Road gain can consider identical, and receiving end can use corresponding orthogonal code and separate the channel being superimposed on port.Pass through TD-
The utilization rate of time interval resource can be improved in OCC.
But in actual deployment, since the radio frequency of base station (gNB) and user equipment (User Equipment, UE) exists
Phase noise, thus each orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing,
OFDM) for symbol there are common phase deviation (Common Phase Error, CPE), NR system introduces Phase Tracking with reference to letter
Number (Phase Tracking Reference Signal, PT-RS), for estimating CPE, to solve the success of adjusting data
Rate.
Since CPE can cause the channel on the same subcarrier adjacent-symbol different, the multiplexing side TD-OCC can be destroyed
The orthogonality of formula orthogonal code can not be demodulated correctly so as to cause using the DMRS port of TD-OCC multiplex mode.
Summary of the invention
Present invention solves the technical problem that being how to improve in the presence of PT-RS and be multiplexed the end DMRS using TD-OCC mode
The success rate of mouth demodulation.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of setting method of DMRS port scheduling, the side
Method includes: in the presence of PT-RS, and for the same UE, two DMRS ports of TD-OCC are not dispatched in setting simultaneously.
Optionally, two DMRS ports that TD-OCC is not dispatched in the setting simultaneously include: to be multiplexed when using TD-OCC
When DMRS port P0 and the corresponding code word of DMRS port P1 are respectively { 1,1 } and { 1, -1 }, if scheduling DMRS port P0, sets
It sets and does not dispatch DMRS port P1, the DMRS on two symbols is to send with mutually repetition；If dispatching DMRS port P1, it is arranged not
DMRS port P0 is dispatched, the DMRS on two symbols is that reverse phase repeats to send.
Optionally, the setting method of the DMRS port scheduling further include: in the presence of PT-RS, the two of TD-OCC are set
A DMRS port distributes to different UE.
Optionally, the scheduling includes: uplink scheduling and descending scheduling.
The embodiment of the present invention provides a kind of received setting method of downlink DMRS port, which comprises is directed to downlink
Link, in the presence of PT-RS, no data in other DMRS ports of DMRS port TD-OCC corresponding with PT-RS is assert in setting.
Optionally, no data in other DMRS ports of DMRS port TD-OCC corresponding with PT-RS is assert in the setting
It include: that CPE estimation and channel estimation are independently carried out to the DMRS port on two symbols.
Optionally, no data in other DMRS ports of DMRS port TD-OCC corresponding with PT-RS is assert in the setting
It include: when DMRS port corresponding with PT-RS is multiplexed in a manner of TD-OCC with port a respectively, in a manner of FDM, FD-OCC mode
Or when FD-CS mode and DMRS port b multiplexing, no data on only DMRS port a is assert in setting.
The embodiment of the present invention provides a kind of base station characterized by comprising the first setting unit is suitable for existing as PT-RS
When, for the same UE, two DMRS ports of TD-OCC are not dispatched in setting simultaneously.
Optionally, first setting unit includes: the first setting subelement, suitable for as the DMRS using TD-OCC multiplexing
Port P0 and the corresponding code word of DMRS port P1 are respectively { 1,1 } and { 1, -1 }, and in the presence of working as PT-RS, for the same UE,
If setting scheduling DMRS port P0, does not dispatch DMRS port P1, the DMRS on two symbols is to repeat to send with phase；Second
Subelement is set, suitable for being respectively { 1,1 } as the DMRS port P0 and the corresponding code word of DMRS port P1 that are multiplexed using TD-OCC
{ 1, -1 }, and in the presence of PT-RS, for the same UE, if setting scheduling DMRS port P1, does not dispatch DMRS port
P0, the DMRS on two symbols are that reverse phase repeats to send.
Optionally, the base station further include: the second setting unit is suitable in the presence of PT-RS, two of TD-OCC are arranged
DMRS port distributes to different UE.
Optionally, the scheduling includes: uplink scheduling and descending scheduling.
The embodiment of the present invention provides a kind of terminal, and the terminal includes: third setting unit, is suitable in the presence of PT-RS,
No data in other DMRS ports for assert DMRS port TD-OCC corresponding with PT-RS is set.
Optionally, the third setting unit includes: third setting subelement, is suitable in the presence of the PT-RS, to PT-
DMRS port on corresponding two symbols of RS independently carries out CPE estimation and channel estimation.
Optionally, the third setting unit, be suitable for when DMRS port corresponding with PT-RS respectively in a manner of TD-OCC with
Port a multiplexing, in a manner of FDM, when FD-OCC mode or FD-CS mode and DMRS port b are multiplexed, the setting identification only end DMRS
No data on mouth a.
The embodiment of the present invention provides a kind of computer-readable medium, is stored thereon with computer instruction, and the computer refers to
Step corresponding to any of the above-described the method is executed when enabling operation.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that
In the presence of PT-RS, the embodiment of the present invention does not dispatch two DMRS ports of TD-OCC by setting simultaneously, can be with
It avoids destroying the orthogonality of TD-OCC multiplex mode orthogonal code due to CPE, causing can not using the DMRS of TD-OCC multiplex mode
The technical issues of correct demodulation, to improve the success rate for being multiplexed DMRS port demodulation using TD-OCC mode.
In the presence of PT-RS, the embodiment of the present invention assert its of DMRS port TD-OCC corresponding with PT-RS by setting
No data in his DMRS port, it is ensured that receiving end is properly received DMRS port, therefore can also be improved using TD-OCC
Mode is multiplexed the success rate of DMRS port demodulation.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the setting method of DMRS port scheduling provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of the received setting method of DMRS port provided in an embodiment of the present invention；
Fig. 3 is the running time-frequency resource schematic diagram that a kind of DMRS port provided in an embodiment of the present invention occupies；
Fig. 4 is the running time-frequency resource schematic diagram that another DMRS port provided in an embodiment of the present invention occupies；
Fig. 5 is a kind of structural schematic diagram of base station provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of terminal provided in an embodiment of the present invention.
Specific embodiment
In existing NR system design scheme, since CPE can cause the channel on the same subcarrier adjacent-symbol not
Together, therefore the orthogonality of TD-OCC multiplex mode orthogonal code can be destroyed, so as to cause using the end DMRS of TD-OCC multiplex mode
Mouth can not be demodulated correctly.
In the presence of PT-RS, the embodiment of the present invention does not dispatch two DMRS ports of TD-OCC by setting simultaneously, can be with
It avoids destroying the orthogonality of TD-OCC multiplex mode orthogonal code due to CPE, leads to the DMRS port using TD-OCC multiplex mode
The technical issues of can not correctly demodulating, to improve the success rate for being multiplexed DMRS port demodulation using TD-OCC mode.
In the presence of PT-RS, the embodiment of the present invention assert its of DMRS port TD-OCC corresponding with PT-RS by setting
No data in his DMRS port, it is ensured that receiving end is properly received DMRS port, therefore can also be improved using TD-OCC
Mode is multiplexed the success rate of DMRS port demodulation.
It is understandable to enable above-mentioned purpose of the invention, feature and beneficial effect to become apparent, with reference to the accompanying drawing to this
The specific embodiment of invention is described in detail.
Referring to Fig. 1, a kind of the step of setting method of DMRS port scheduling provided in an embodiment of the present invention, may include:
S101, in the presence of PT-RS, for the same UE, two DMRS ports of TD-OCC are not dispatched in setting simultaneously.
In the presence of PT-RS, illustrate CPE presence at this time, for the same UE, if dispatching two ends of TD-OCC simultaneously
Mouthful, CPE can destroy the orthogonality of the orthogonal code of TD-OCC multiplex mode, to influence the correct demodulation of DMRS.Therefore at this point for
Two DMRS ports of TD-OCC are not dispatched in the same UE, setting simultaneously, can destroy TD-OCC multiplex mode to avoid due to CPE
The orthogonality of orthogonal code leads to the technical issues of can not correctly demodulating using the DMRS of TD-OCC multiplex mode, adopts to improve
The success rate of DMRS demodulation is multiplexed with TD-OCC mode.
In specific implementation, if a DMRS port is only dispatched in setting, another port can not send data, and two
DMRS on a symbol repeats to send.
In an embodiment of the present invention, as the DMRS port P0 and the corresponding code word of DMRS port P1 using TD-OCC multiplexing
Respectively { 1,1 } and { 1, -1 } when, if it is described be arranged do not dispatch simultaneously TD-OCC two DMRS ports may include: scheduling
DMRS port P0 is then arranged and does not dispatch DMRS port P1, and the DMRS on two symbols is to send with mutually repetition；If dispatching DMRS
Port P1 is then arranged and does not dispatch DMRS port P0, and the DMRS on two symbols is that reverse phase repeats to send.
In specific implementation, for different UE, the orthogonal code of TD-OCC multiplex mode can be destroyed since there is no CPE
The problem of orthogonality, so in the presence of PT-RS, two DMRS of TD-OCC can be set in order to promote the utilization rate of resource
Port assignment gives different UE.
In specific implementation, the scheduling not only can be uplink scheduling, but also can be descending scheduling.In current NR system
In, the uplink scheduling and the descending scheduling have gNB realization.
Using above scheme, can cause to use to avoid the orthogonality for destroying TD-OCC multiplex mode orthogonal code due to CPE
The technical issues of DMRS of TD-OCC multiplex mode can not be demodulated correctly is multiplexed DMRS port using TD-OCC mode to improve
The success rate of demodulation.
Another embodiment of the present invention provides a kind of received setting methods of DMRS port, as shown in Figure 2.
Referring to fig. 2, for downlink, the received setting method of DMRS port may include: S201, work as PT-RS
In the presence of, no data in other DMRS ports of DMRS port TD-OCC corresponding with PT-RS is assert in setting.
In an embodiment of the present invention, other DMRS of DMRS port TD-OCC corresponding with PT-RS are assert in the setting
No data may include: independently to carry out CPE estimation and channel estimation to the DMRS on two symbols on port.
In specific implementation, when DMRS port corresponding with PT-RS is multiplexed in a manner of TD-OCC with port a respectively, with frequency
Multiplexing (FrequencyDivision Multiplexing, FDM) mode, frequency domain orthogonal covering codes is divided to be multiplexed (Frequency
Domain-Orthogonal Cover Code, FD-OCC) mode or frequency-domain circular shift code be multiplexed (Frequency
Domain-Cyclic Shift, FD-CS) when being multiplexed, no data on only DMRS port a is assert in setting by mode and DMRS port b,
Assert that DMRS port corresponding with PT-RS can use simultaneously with port b.For example, DMRS port P0 and DMRS port P1 is logical
It crosses TD-OCC mode to be multiplexed, DMRS port P0 and DMRS port P2 are multiplexed by FDM mode, and PT-RS is opposite with DMRS port P0
It answers, at this time when receiving DMRS port P0, only assert that DMRS port P1 no data, DMRS port P2 can normally be sent.
Using above scheme, it is ensured that receiving end is properly received DMRS port, therefore can also be improved using TD-
OCC mode is multiplexed the success rate of DMRS port demodulation.
To more fully understand those skilled in the art and realizing the present invention, one embodiment of the invention provides a kind of DMRS
The running time-frequency resource schematic diagram that port occupies, referring to Fig. 3.
As shown in figure 3, DMRS port 0 and port 1 correspond to running time-frequency resource 31, the running time-frequency resource 31 is two subcarriers
On two adjacent-symbols, DMRS port P0 and the corresponding code word of DMRS port P1 are respectively { 1,1 } and { 1, -1 }
In specific implementation, if scheduling DMRS port P0, is arranged and does not dispatch port P1, two phases in running time-frequency resource 31
Adjacent symbol is to send with mutually repetition.
In specific implementation, if scheduling DMRS port P1, is arranged and does not dispatch port P0, two phases in running time-frequency resource 31
Adjacent symbol is that reverse phase repeats to send.
, can be to avoid in the presence of CPE using above scheme, DMRS port P0 and DMRS port P1 are sent simultaneously
Data, thus the technical issues of can not correctly demodulating.
To more fully understand those skilled in the art and realizing that the present invention, one embodiment of the invention provide another kind
The running time-frequency resource schematic diagram that DMRS port occupies, referring to fig. 4.
DMRS port is multiplexed (Frequency Domain-Orthogonal Cover using frequency domain orthogonal covering codes
Code, FD-OCC) and TD-OCC mode combine multiplexing, comprising: port P1, port P2, port P3 and port P4, middle port P0
It is multiplexed with port P2 by TD-OCC mode, port P1 and port P3 are multiplexed by TD-OCC mode, and port P0 and port P1 are logical
It crosses FD-OCC mode to be multiplexed, port P2 and P3 is multiplexed by FD-OCC mode.P4 pairs of port P1, port P2, port P3 and port
The orthogonal covering codes (S0, S1, S2, S3) answered be followed successively by (1,1,1,1), (1, -1,1, -1), (1,1, -1, -1) and (1, -1, -1,
1) running time-frequency resource that, orthogonal covering codes occupy is as shown in Figure 4.
In specific implementation, setting is in the presence of PT-RS, for the same UE, dispatching terminal mouth P0 and P2 when being arranged different.
In specific implementation, setting is in the presence of PT-RS, for the same UE, dispatching terminal mouth P1 and P3 when being arranged different.
It is understood that port P0 and port P1, port P2 and port P3 be due to being multiplexed using FD-OCC mode, therefore can
Allow while dispatching port P0 and port P1 to be arranged, allows while dispatching port P2 and port P3.
To more fully understand those skilled in the art and realizing the present invention, additionally providing in the embodiment of the present invention can be real
The corresponding base station of setting method of DMRS port scheduling, is described in detail referring to the drawings in existing above-described embodiment.
A kind of base station 50 as shown in Figure 5, comprising: the first setting unit 51 is suitable in the presence of PT-RS, for same
Two DMRS ports of TD-OCC are not dispatched in a UE, setting simultaneously.
In an embodiment of the present invention, first setting unit 51 may include: the first setting subelement 511 and second
Subelement 512 is set, in which:
The first setting subelement 511, suitable for as the DMRS port P0 being multiplexed using TD-OCC and P1 couples of DMRS port
The code word answered is respectively { 1,1 } and { 1, -1 }, and in the presence of PT-RS, for the same UE, if setting scheduling DMRS port
P0 does not dispatch DMRS port P1 then, and the DMRS on two symbols is to send with mutually repetition.
The second setting subelement 512, suitable for as the DMRS port P0 being multiplexed using TD-OCC and P1 couples of DMRS port
The code word answered is respectively { 1,1 } and { 1, -1 }, and in the presence of PT-RS, for the same UE, if setting scheduling DMRS port
P1 does not dispatch DMRS port P0 then, and the DMRS on two symbols is that reverse phase repeats to send.
In specific implementation, the base station 50 can also include: the second setting unit 52, be suitable in the presence of PT-RS, if
Two DMRS ports for setting TD-OCC distribute to different UE.
In specific implementation, the scheduling includes: uplink scheduling and descending scheduling.
Those skilled in the art are made to more fully understand and realize the present invention, additionally providing in the embodiment of the present invention can be realized
The corresponding terminal of the received setting method of DMRS port, is described in detail referring to the drawings in above-described embodiment.
A kind of base station 60 as shown in FIG. 6, comprising: third setting unit 61 is suitable in the presence of PT-RS, and setting is assert
No data in other DMRS ports of DMRS port TD-OCC corresponding with PT-RS.
In an embodiment of the present invention, the third setting unit 61 includes: third setting subelement 611, is suitable for working as PT-
In the presence of RS, CPE estimation and channel estimation are independently carried out to the DMRS on two symbols corresponding with PT-RS.
In specific implementation, the third setting unit 61 is suitable for when DMRS port corresponding with PT-RS is with the side TD-OCC
Formula and port a are multiplexed, and in a manner of FDM, when FD-OCC mode or FD-CS mode and DMRS port b are multiplexed, setting identification is only
No data on DMRS port a
The embodiment of the present invention also provides a kind of computer-readable medium, is stored thereon with computer instruction, the computer
Any of the above-described kind of step corresponding to embodiment the method is executed when instruction operation.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (16)
1. a kind of setting method of DMRS port scheduling characterized by comprising
In the presence of PT-RS, for the same UE, two DMRS ports of TD-OCC are not dispatched in setting simultaneously.
2. the setting method of DMRS port scheduling according to claim 1, which is characterized in that the setting is not dispatched simultaneously
Two DMRS ports of TD-OCC include:
When being respectively { 1,1 } and { 1, -1 } using the DMRS port P0 and the corresponding code word of DMRS port P1 of TD-OCC multiplexing,
If dispatching DMRS port P0, it is arranged and does not dispatch DMRS port P1, the DMRS on two symbols is to send with mutually repetition；
If dispatching DMRS port P1, it is arranged and does not dispatch DMRS port P0, the DMRS on two symbols is that reverse phase repeats to send.
3. the setting method of DMRS port scheduling according to claim 1, which is characterized in that further include:
In the presence of PT-RS, two DMRS ports that TD-OCC is arranged distribute to different UE.
4. the setting method of DMRS port scheduling according to claim 1, which is characterized in that the scheduling includes: uplink
Scheduling and descending scheduling.
5. a kind of received setting method of DMRS port characterized by comprising
For downlink, in the presence of PT-RS, other DMRS of DMRS port TD-OCC corresponding with PT-RS are assert in setting
No data on port.
6. the received setting method of DMRS port according to claim 5, which is characterized in that the setting assert and PT-
No data includes: in other DMRS ports of the corresponding DMRS port TD-OCC of RS
CPE estimation and channel estimation are independently carried out to the DMRS port on two symbols.
7. the received setting method of DMRS port according to claim 5, which is characterized in that the setting assert and PT-
No data includes: in other DMRS ports of the corresponding DMRS port TD-OCC of RS
When DMRS port corresponding with PT-RS respectively in a manner of TD-OCC with port a be multiplexed, in a manner of FDM, FD-OCC mode or
When person FD-CS mode and DMRS port b are multiplexed, no data on only DMRS port a is assert in setting.
8. a kind of base station characterized by comprising
First setting unit is suitable in the presence of PT-RS, and for the same UE, two of TD-OCC are not dispatched in setting simultaneously
DMRS port.
9. base station according to claim 8, which is characterized in that first setting unit includes:
First setting subelement, suitable for when the corresponding code word difference of DMRS port P0 and DMRS port P1 using TD-OCC multiplexing
For { 1,1 } and { 1, -1 }, and in the presence of PT-RS, for the same UE, if setting scheduling DMRS port P0, is not dispatched
DMRS port P1, the DMRS on two symbols are with mutually repeating to send；
Second setting subelement, suitable for when the corresponding code word difference of DMRS port P0 and DMRS port P1 using TD-OCC multiplexing
For { 1,1 } and { 1, -1 }, and in the presence of PT-RS, for the same UE, if setting scheduling DMRS port P1, is not dispatched
DMRS port P0, the DMRS on two symbols are that reverse phase repeats to send.
10. base station according to claim 8, which is characterized in that further include: the second setting unit is suitable for existing as PT-RS
When, two DMRS ports that TD-OCC is arranged distribute to different UE.
11. base station according to claim 8, which is characterized in that the scheduling includes: uplink scheduling and descending scheduling.
12. a kind of terminal characterized by comprising
Third setting unit is suitable in the presence of PT-RS, and other of DMRS port TD-OCC corresponding with PT-RS are assert in setting
No data in DMRS port.
13. terminal according to claim 12, which is characterized in that the third setting unit includes: that third setting is single
Member is suitable in the presence of PT-RS, independently carries out CPE estimation and channel to the DMRS port on two symbols corresponding with PT-RS
Estimation.
14. terminal according to claim 12, which is characterized in that the third setting unit is suitable for when corresponding with PT-RS
DMRS port be multiplexed in a manner of TD-OCC with port a respectively, in a manner of FDM, FD-OCC mode or FD-CS mode and DMRS
When port b is multiplexed, no data on only DMRS port a is assert in setting.
15. a kind of computer-readable medium, is stored thereon with computer instruction, which is characterized in that the computer instruction operation
When the perform claim step that requires any one of 1 to 4 the method corresponding.
16. a kind of computer-readable medium, is stored thereon with computer instruction, which is characterized in that the computer instruction operation
When the perform claim step that requires any one of 5 to 7 the methods corresponding.
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| WO2022205308A1 (en) * | 2021-04-01 | 2022-10-06 | 北京小米移动软件有限公司 | Information transmission method and apparatus, terminal device, base station, and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022205308A1 (en) * | 2021-04-01 | 2022-10-06 | 北京小米移动软件有限公司 | Information transmission method and apparatus, terminal device, base station, and storage medium |
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| CN109150433B (en) | 2022-02-01 |
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